water purification: Media
public health
Videos
“America's Top Young Scientist” Gitanjali Rao invented a device to help test drinking...
Video: Encyclopædia Britannica, Inc.
Steps in the modern treatment of wastewater.
Video: Encyclopædia Britannica, Inc.
Images
Water from inlets located in the water supply, such as a lake, is sent to be mixed,...
Encyclopædia Britannica, Inc.
Basic steps in the treatment of municipal water.
Encyclopædia Britannica, Inc.
Schematic diagram of a rapid-filter water treatment facility.
Encyclopædia Britannica, Inc.
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